obama with saving their industry. >> with the help of president obama saving the big three. if we had let chrysler, chevrolet and gm go down, there would not be an international union, so he did save our jobs. >> suarez: that's the message the president took on the labor day campaign trail to ohio, where he reminded autoworkers of mitt romney's opposition to the g.m. and chrysler bailouts. >> when auto industry was flat lining, their play book was to let it go bankrupt. you would have been benched for good. that's not a good plan. more than one million people would have lost their jobs. for mid west it would have been another great depressions. >> suarez: workers in charlotte will hear from the president thursday night, when he officially accepts the democratic nomination for a second term. >> woodruff: we look now at the state of organized labor with the leaders of three unions. mary kay henry is president of the service employees international union. jim hoffa is president of the international brotherhood of teamsters. and lee saunders is president of the american federati